scholarly journals Quaternized polysulfone and graphene oxide nanosheet derived low fouling novel positively charged hybrid ultrafiltration membranes for protein separation

RSC Advances ◽  
2015 ◽  
Vol 5 (63) ◽  
pp. 51208-51219 ◽  
Author(s):  
Mahendra Kumar ◽  
Declan McGlade ◽  
Mathias Ulbricht ◽  
Jenny Lawler
Keyword(s):  
Graphene Oxide ◽  
Charge Density ◽  
Cross Section ◽  
Protein Separation ◽  
Solution Casting ◽  
Ultrafiltration Membranes ◽  
Sem Image ◽  
Graphene Oxide Nanosheet ◽  
Uf Membranes ◽  
Positively Charged

Low fouling positively charged hybrid UF membranes with adjustable charge density fabricated from a blend of PSf/QPSf and GO nanosheets by solution casting and NIPS method. Cross-section SEM image and observed lysozyme transport values at varied pH.

Reinforcement of nanostructured reduced graphene oxide: a facile approach to develop high-performance nanocomposite ultrafiltration membranes minimizing the trade-off between flux and selectivity

RSC Advances ◽  
2015 ◽  
Vol 5 (58) ◽  
pp. 46801-46816 ◽  
Author(s):  
Avishek Pal ◽  
Soumitra Kar ◽  
A. K. Debnath ◽  
D. K. Aswal ◽  
R. C. Bindal ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Mechanical Stability ◽  
Ultrafiltration Membranes ◽  
Trade Off ◽  
Reduced Graphene ◽  
Uf Membranes

In situ impregnation of nanostructured reduced graphene oxide (nRGO) in Ps matrix leads to Ps–nRGO composite UF membranes with promising attributes such as improved flux, optimum selectivity along with reasonable thermal and mechanical stability.

Functionalized chitosan derived novel positively charged organic–inorganic hybrid ultrafiltration membranes for protein separation

RSC Advances ◽  
2014 ◽  
Vol 4 (42) ◽  
pp. 21699-21711 ◽  
Author(s):  
Mahendra Kumar ◽  
Declan McGlade ◽  
Jenny Lawler
Keyword(s):  
Protein Separation ◽  
Ultrafiltration Membranes ◽  
Inorganic Hybrid ◽  
Positively Charged

Positively charged organic–inorganic hybrid ultrafiltration membranes for selective protein separation were fabricated from blends of PVA, functionalized600 dpi in TIF format)??> chitosan and tetraethylorthosilicate.

scholarly journals Graphene Deposition on Glass Fibers by Triboelectrification

2021 ◽  
Vol 11 (7) ◽  
pp. 3123
Author(s):  
Haroon Mahmood ◽  
Laura Simonini ◽  
Andrea Dorigato ◽  
Alessandro Pegoretti
Keyword(s):  
Graphene Oxide ◽  
Interfacial Shear Strength ◽  
Glass Fibers ◽  
Deposition Process ◽  
Solution Concentration ◽  
Dip Coating ◽  
Slight Improvement ◽  
Reduced Graphene ◽  
Fiber Matrix ◽  
Positively Charged

In this work, a novel nanomaterial deposition technique involving the triboelectrification (TE) of glass fibers (GF) to create attractive charges on their surface was investigated. Through TE, continuous GF were positively charged thus, attracting negatively charged graphene oxide (GO) nanoparticles dispersed in a solution. The electrical charges on the glass fibers surface increased with the intensity of the TE process. The deposited GO coating was then chemically treated to obtain reduced graphene oxide (rGO) on the surface of GFs. The amount of coating obtained increased with the GO solution concentration used during the deposition process, as revealed by FESEM analysis. However, the same increment could not be noticed as a function of the intensity of the process. Both uncoated and coated GF were used to obtain single fiber microcomposites by using a bicomponent epoxy matrix. The fiber/matrix interfacial shear strength was evaluated through micro debonding tests, which revealed an increment of fiber/matrix adhesion up to 45% for rGO coated GF in comparison to the uncoated ones. A slight improvement in the electrical conductivity of rGO coated fibers through TE compared to conventional dip coating was also observed in terms of volumetric resistivity by a four-point probe setup.

Fabrication of graphene oxide incorporated polyethersulfone hybrid ultrafiltration membranes for humic acid removal

2019 ◽  
Vol 223 ◽  
pp. 17-23 ◽  
Author(s):  
Mohammad Saad Algamdi ◽  
Ibrahim Hotan Alsohaimi ◽  
Jenny Lawler ◽  
Hazim M. Ali ◽  
Abdullah Mohammed Aldawsari ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Humic Acid ◽  
Ultrafiltration Membranes
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